Smoke-house.



J. F. OBERLE.

SMOKE HOUSE..

APPLICATION FILED APR. 25. I914.

1,15%,965. PatentedSept. 7, 1915;

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IF 0561' la 331 111: 61451101440430 COLUMBIA PLANDGRAPH 50., WASHINGTON,n. c.

J. F. OBERLE.

SMOKE HOUSE.

APPLICATION FILED APR. 25. 1914.

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earns m l men.

. JACOB F. OBERLE, OF'RICHMOND, YORK.

SMOKE-HOUSE.

To all wit-m it may concern .7

Be it known that I, JACOB F. Oennnna citizen of the United States, and aresident of Richmond, county of Richmond, and State of New York, haveinvented certain new and useful Improvements in Smoke- Houses, of whichthe following is'a full,

clear, and exact. description.

This invention relates more particularly to a smoke-house for smokingmeats of different kinds.

It is customary to build or place the smoke-house in tenement houses andusually 1n the basement thereof- For sanitary reasons, it is necessarythat the smokehouse be constructed so that access maybe had to theportion wherein the meats are smoked and that this be accomplishedwithout the smoke escaping into the basement, and into other portions ofthe building. So far as I am aware, many objections have been raised tosmokehouses or apparatuses of this kind as ordinarily constructedbecause of their inaccessibility and lack of satisfactory provisionwhereby the smoke may be caused to pass directly from the smoke-house orapparatus to the chimney or flue without escaping tothe outside thereofwith the objectionable features necessarily arising there from. g

, One of the principal objects of the present invention is to overcomethe objections above named and to provide a smoke-house or apparatuswhich may be placed within a building or which may beconstructed orbuilt as a part thereof and so constructed that means may be readily andeffectively smoked without the liability of any smoke passing to theexterior of the smoke-house or apparatus and in which access'maybereadily had at will to theinterior thereof to place the meat to besmoked within the same or to remove the meat after being smoked from theapparatus.

Another object of the invention is toproride a simple and efi'icientsmoke-house or apparatus whereby the access'doors to the interior of thesmoking compartment may be positively looked and held against movementso long as the smoking of the meat is.

underway, and in which all openings from the ap aratus are so controlledthat free Specification of Letters Patent. Patented Sept. 7, 1915.Application filed April 25, 19M. Serial No. 834,388.

to provide means for closing the fire-box to prevent smoke passingtherefrom into the smoking compartment or to open said means to form acommunication between the smoking compartment and the fire-box; to provide simple and efficient means whereby the fire-box smoke exit openingsmay be con trolled and communication between. the

smoking compartment and the flues also controlled and the access doorstothe smoking' compartment automatically locked or unlocked according tothe position of the controlling means of the exit openings;. to providean, apparatus having a smoking compartment and an outer smoke chamber orcompartment each communicating by independent flues to a chimney orchimneys; I and toprovide'means whereby the smoking compartment may beunder positive control. A further object of the invention. is to providesimple and efiicient mechanism whereby all the smoke exit openings maybe simultaneously actuated.

A. still further object of the invention is to provide a smoke-house orapparatus which is simple in construction and whichis effective in use.

vVith these and other ob ects in view, the invention will be hereinaftermore particularly described with reference to the accompanying drawings,which form a part of this specification, and will then be pointed out inthe claims at the end of the description.

In the drawings, Figure 1 is a vertical section, taken on the line II=ofFig. 2, showing one form of Smokehouse or apparatus embodying myinvention. Fig. 2 is a vertical transverse section taken on the lineIIII of Fig. 1. Fig. 3 is a vertical transverse section taken on theline III-III of Fig. 4; Fig. 4.- is a sectional plan view taken on theline IVIV' of Fig. 3. Fig. 5 is a fragmentary transverse section showingcer-' tain of the operating mechanism in a difierent position from thatshown in Fig. 8. Fig. 6 is an enlarged fragmentary transverse sectiontaken on the line VIVI of Fig. 3; and Fig. 7 is an enlarged fragmentarysection through the fire-box door operating and controlling means takenon the line VITVIT of Fig. 6.

The smoke-house or apparatus may be of any desired form and of anysuitable material. As shown, it consists of an outer casing 10 and aninner casing 11. The outer casing 10 has a base 12, a rear wall 13, sidewalls 14-, and a top or roof 15, the forward portion of which has a hood16 for the purpose of catching any vapor or smoke that may by anypossibility escape to the outside of theapparatus. The rear wall 13 isprovided with an opening 17 communicating with a flue 18 which leads toa chimney or other exit, and at the upper portion of said casing is aflue 19 con'nnunicating with the space under the hood 16 and whichserves to direct any smoke caught by the hood to ward and close to theopening 17.

A fire-box 20 is arranged within the inner casing 11 and said fire-boxhas an opening 20 at the forward portion thereof which is controlled byasliding door 21. The fire box is provided at its sides with smoke exitopenings 22 which are adapted to be closed or opened by a slide ordamper 23 at each side thereof. These slides have openings which areadapted to be brought into alinement with the openings 22 to permit orprevent smoke from passing through said openings 22 into the chamber 24,the latter being located at the side and rear of the casing 11 and whichchamber serves to receive the smoke to adapt the latter to pass into theopening 17 and out through the flue 18 to the chimney. At the upperportion of the fire-box 20 are one or more openings 25 forming acommunication between said fireboX and the smoking chamber orcompartment 26. This smoking chamber extends substantially the entireheight and width of the inner casing 11 except so much thereof as istaken up by the fire-box 20, and the said smoking compartment is adaptedto be shut off from the fire-box by doors 2?. These doors are hinged orpivotally held at one edge, as at 28, adjacent to the side walls 29 ofthe inner casing and swing inwardly and downwardly inclosing so as tocover the openings 25 over the fire-box 20. While smoking the meat, thedoors 27 are normally in an open position and the slides or dampers 28of the fire-box are closed, the slide 21 covering the front openingbeing open or-partly open for draft purposes or otherwise so that smokefrom the fire-box may pass into the smoking compartment 26. When it isdesired to shut off the fire-box from the compartment 26 after the meathas been smoked, the doors 27 are closed as will be explainedhereinafter, and at the same time the slides 23 are opened which willpermit smoke from the fire box to pass into the outer chamber 24 aboutthe inner casing 11 and up to and through the opening 17 and into theflue 18.

The smoking compartment is provided with a number of supporting bars orangular pieces 30 extending lengthwise thereof which are held to theside walls 29, and at the front said compartment is open, as at 31, andis controlled by two oppositely moving sliding doors 32. The opening 31is large enough to permit access of the workmen to the smokingcompartment or chamber 26 for the placing of the meat within thecompartment or the removal of the same therefrom. These doors are closedwhen the firebox doors 2'? are open and vice versa so that smoke fromthe fire-box cannot pass into the compartment 26 when the doors 32 areopen and consequently to the outside of the apparatus s0 as to fill thebuilding with the smoke issuing from the fire-box. In the top or upperwall of the inner casing 11 are a number of openings 34: which arecontrolled by a slide or chamber 35, and at the upper rear portion ofthe casing is an opening 36 leading to flue 37 which communicates withthe fine 18. The flue 37 is always open so that smoke can have directand free passage to the chimney, and when the apparatus isin use, theslide or damper 85 is in a closed position while when the doors 27 ofthe lire-box are in a closed position and the doors 32 open or ready foropening, the slide 35 in that case is moved to an open position so thatany smoke remaining in the smoking compartment 26 will pass not onlythrough the fine 37 but also to and from the chamber 24: and through theflue 18.

It is desirable that the doors 27 of the firebox, the slides at the sideof the fire-box, as well as the slide 35 be timed with respect to theirmovements and actuated at the same time and from a single operatingshaft or other means, and such parts positively connected so that onecannot be operated independently of the other in order that no oversighton the part of the workmen or attendant will prevent the apparatus fromworking properly, though it will be understood that the said mcans maybe partly or wholly controlled independently. As shown, the slides 23are each connected to a rod 38 which is suitably guided on the casing11, and at their outer ends said rods are connected. to cranks 39. Thesecranks extend upward from a pivotally held rook shaft or rod 4-0 whichis adapted to be moved back and forth and during such rocking movementforce the slides lengthwise of the firebox to open and close theopenings 22.. i The shaft or rod 40 has two differently positioned arms41 and 42, the arms 42 being bifurcated at one end and providedwith aroll 43. These arms 41 and42 are arranged arm 46 is provided with a camportion 47 p which is adapted to engagewith the roll 43 During thelowering of the of the arm 4-2. arm or bar 44, the cam 47 will pass bythe roll 43 and the arm 45 thereof will engage.

the arm 41 of the shaft 40 and rock the cranks 39 in one direction tomove the slides 23 to an open position, and on the upward movement ofthe bar 44 the cam 47 thereof will engage the roll 43 and will move theshaft 40 and cranks 39 in the opposite direction so as to place theslides in a closed position.

The bar 44 is carried by a vertically movng rack. bar 48. This rack bar48 has the teeth thereof normally engaged by a spur gear or pinion 49which is secured to a horizontally arranged and transversely extendingshaft 50, the latter being rotatably held in lugs or brackets 51 locatedon the rear wall of the inner casing 11. At one end of the shaft 50 is abevel gear or'pinion 52 which meshes with a similar pinion 53. The gear53 is held to a horizontally arranged shaft 54 which is guided inbrackets or lugs 55 secured to one of the side walls of the inner casing11. The pinion or miter gear 56 is in mesh with a larger miter gear 57whichis secured to a shaft 58 extending transversely of the apparatusand which has a part, as 59,.extending on the outside of the outer wallof the casing 10. This shaft 58 has a square or otherwise formed end 60,by which" a key, wrench or other tool may be used so that by rotatingthe same a vertical movement may be imparted to the rack bar 48 andthereby raise and lower the bar 44 and through it move the slides 23 toan open or a closed position. The upper end of the rack bar 48 isprovided with a roll 61 which in its upward movement is adapted toengage with a cam action against the lower edge of the arm 62 of abell-crank lever 63. The bell-crank lever 63 is pivoted to a bracket 64and at one end is connected to a link or rod 65, whichlatter is pivotedat its inner end, as at 66, to a lug on the slide or damper 35, bywhich, when the bell-crank is moved, the slide 35 may be moved to openor close the openings 34. The arm 62 of" the bellcrank is connected by achain or other flexible connection 67 to the upper end of the rack bar48. This chain or flexible connection 67 is of sufiicient length topermit the rack bar 48 to be moved a certain distance before the slacktherein is taken. up suiiiciently to cause the chain through the slide35 to place the openings 68 in said slide in communication with theopenlngs 34 of the smok ng compartment.

It will thus be evident that the rotation of the shaft 58, the shaft 54through the pinions or miter gears 52 and 53 and the pinion 49, willraise and lower the rack bar 48'. If the rotation is in a direction toraise the rack bar from its lowest position, it

bell-crank 63 to operate the link 65 and the will operate the slides 23as already described and in its upward movement will cause the roll 61to engage the bell-crank lever 63 to force the slide to the positionshown in Fig. 1, and at the latter part of the movement thereof, and, onthe downward movement of said bar, the slide will be operated at thelatter part of the movement with the rack bar. This permits a quickaction of the slide 35 and permits the doors 32 to remain locked as longas possible.

I A'link 69 is connected at one end to a pin 70 projecting outwardlyfrom one of the fire boxdoors-27. This pin passes through a curved slot71 extending in the arc of a circle with the hlnge of said door as acenter. A second link 72 similar to the link 69 to the slot 71 andforming an arc of a circle with the hinge of the other fire-box door-asa center. Theselinks 69 and '22 are pivotally held at their inner endsto a bolt 75.

which passes through the lower endof the rack bar 48 and the bar 44.During the downward movement of the rack bar 48, the inner ends of thelinks will be forced downward and the outer end of said links will beforced inward and downward corresponding to the curvature of the slots71 and 2 4- to the position shown in Fig. 5, carrying therewith thedoors of the fire box to a hor1 zontal and closed position as shown indot-. ted lines in said figure; This downward movement of the rack baralso operates the crank rock shaft 40 at the extremeend of the movementin one direction and in its upward movement will operate the rock shaft40 in the opposite direction by engagement of the cam 47 with the roll43 as already explained, and as the bar 48 continues "upward, it willforce the upper ends of the 32 simultaneously with the movement of the vslide 35, various means may be employed.

As shown, each of the doors has an inwardly though a extending plate 76.These plates are each provided with an opening 7 7 and are adapted to bebrought into alinement when the doors are in a closed position. Theseopenings are adapted to be engaged by a pin or bolt 78 which is guidedin the upper wall 33 of the inner casing 11 and is connected at itsupper end to a lever 7 9. This lever 79 is" pivoted at 80 to a pendentbracket 81 and has its outer end bent upward to form a cam portion 82.On the slide or shutter is an upright 83 through which extends a pin 8%.When the slide 35 is forced rearward by the link to place the openings68 and 34: in alinement, the pin 84- riding along the cam portion 82 ofthe lever 79 will force the forward end of said lever upward so as tomove the bolt 7 8 out of engagement with the openings 77 of the doors32, thus releasing the same which will permit the doors to be opened. Onthe reverse movement of the slide 35 and when the doors are closed, thebolt 78 will. be permitted to I gravity to engage said openings, springmay be provided tending normally to hold the bolt 78 in a loweredposition. By this means the doors cannot be openedwithoutthe movement ofthe slide 35 and as the slide is connected to be operated with the meanswhich also operates the fire-box doors and the slides 28, the said doorsof the smoking compartment cannot be opened except that the saidfire-box doors and the smoke exit controlling means are in their properrelative positions. a

The invention will be readily understood from the foregoing descriptionwhen taken in connection with the accompanying drawings. The meat to besmoked having been lower by placed in the smoking compartment or chamber26 by being suspended in any suitable way along the bars 30, and theshaft 58 operated by a suitable tool to position the parts as shown inFig. 1, the smoke from the firebox 20 will pass upward through thesmoking compartment and out through the flue 37 to the fine 18 and fromthere to the chimney. In this position the doors 32 for access of theworkmen to the smoking compartment, ar locked by the bolt '78. If theshaft 58 be now rotated in the opposite direction by a key, wrench orotherwise, the rack bar 48 will be forced downward and as it lowers itwill close the fire-box doors 27 shutting oil the communication betweenthe fire-box and th smoking compartment. At the extreme movement of therack bar t8, the bar 44 will engage the arm 41 so as to force the slides23 forward to bring the openings in said slides in alinement with theopenings of the fire-box. This downward movement or" the rack bar 48through the flexible connection or chain 67, will move the slide orshutter 35 rearward placing the openings 34- and 68 in alinement, and atthe the smoke and thereby same time causing the pin 84 to move the lever79 on its pivot to release the bolt 7 8.

As the fire-box doors 27 during the downward movement of the rack bar4-8 through the links 69 and 72 are closed, no smoke from the fire-boxcan enter the smoking compartment, but the lateral openings 22 at thistime form smoke exit openings to permit the smoke from the lire-box toenter the outer chamber through which the smoke will pass into the flue18. Any smoke that may remain in the smoking compartment or which haspassed therein during the closing of the firebox doors 27, will becaused to pass not only out through the line 37 but will pass alsothrough the openings 34: and 68 to the flue 18, thus when the doors 32are open, there is no smoke to pass out of the apparatus into the roomor place where the apparatus is located. The meat already smoked may beremoved and other meat placed in the smoking compartment, and after thedoors are closed the rack bar l8 may be again operated to force theparts to the position shown in Fig. 1 when the apparatus is again inoperative condition.

It will be evident that by the construction shown there will be no smokeleft in the smoking compartment when the parts are operated to unlockthe doors and in this way the workmen are not liable to injury byinhaling the smoke when they enter said smoking compartment. It will beevident also'that the outer chamber 24 by forming an air space about thelire-box and the smoking compartment, there is less liability to lire bythe heated surfaces coming into contact with anything, and thispoor-heating space or chamber has a tendency to cool assists inpreventing shrinkage of the meats.

While the invention has been shown and described as formed of sheetmetal to adapt thesame to be placed within a building as an entirety, itis to be understood that the walls forming the inner and outercompartments of the device may be made of masonry or a combination ofmasonry and metal or otherwise without departing from the nature of theinvention. It will be also understood that instead of the mechanismshown for operating the various slides and doors, any suitable mechanismmay be employed.

From the foregoing, it will be evident that a simple and eiiicientsmoke-house or apparatus is provided whereby meats may be effectuallysmoked without permitting any of the smoke or vapors to pass into theroom or building where the apparatus is located;

that simple means is provided whereby all the operative parts are soconnected that by the operation of one, the other operative parts areplaced in their proper relative positions; that simple means is providedwhereby the smoking compartment may be entirely out ofl from thefire-box; that simple means is provided whereby the doors for theworkmen for access to the smoking compartment may be automaticallylockedcasing having a fire-box and a smokingcompartment each havingsmoke exit openings, means for suspending the material to be smokedWithin the smoking compartment, an outer casing spaced from the innercasing to form an outer chamber thereabout,

independent fines leading from the smoking compartment and from theouter chamber,

said smoking compartment having a large opening for access by theworkmen to the smoking compartment, doors controlling the accessopening'to said smoking compartment, doors for the fire-box to preventsmoke from enterin the smokincompartment or to permit smoke to entertherein, means for closing said smoke exit openings of the fire-box andthe smoking compartment, mechanism for controlling the position of theclosing means of the smoke exit openings for automatically locking andunlocking the access doors of the smoking compartment, and means foropening or closingthe doors of the fire-box.

2. A smoke-house comprising an inner casing having a fire-box and asmoking compartment each having smoke exit openings, means forsuspending the material to be smoked Within the smoking compartment, anouter casing spaced from the inner casing to form an outer chamberthereabout,

means for conveying the smoke from the smokingcompartment and from theouter chamber, sald smoking compartment having a large opening foraccess by the workmen to said smoking compartment, doors controlling theaccess openlng to sald smoking compartment, doors for the fire-box topre vent smoke from entering the smoking compartment or to permit smoketo enter therein, means for closing saidsmoke' exit openings of thefire-box and the smoking com partment, means for controlling theposition of the closing means of the smoke exit openings, means forlooking or unlocking the access doors of the'smoking compartment, andmeans for opening or closing the doors of the fire-box. i Q

3. A smoke-house having a .fire-bo-x and a smoking compartment eachprovided With smoke exit openings, an outer casing pro viding an outerchamber about the smoking compartment, flues leading from. the smokingcompartment and from the outer chamber, said smoking compartmentihavingia large opening for access by the Workmen to said smokingcompartment,-means controlling the access opening to saidsmokingcompartment, doors for closing the fire-box to prevent smoke fromentering the smoking compartment or to permit smoke to enter therein,and means for closing said smoke exit openings of-the fire-box and doorsleading to the smoking compartment. I

4-. A smoke-house having an innercasing having a fire-box anda smokingcompartment and having smoke" exit openings, means for suspending thematerial to be smoked Within the smol'ring compartment, an outer casingspaced from'the smoking compartment to form an outer smoke chamber'thereabout, independent fines leading from the smoking compartment andfrom the outer chamber, said inner smoking compartment having an accessopening to the smoking compartment, doors controllingthe access openingto said smoking compartment, means forclosing'said smoke'exit openingsof the'fire-box' and the smoking compartment, and mechanism forcontrolling the position'of the closing means of the smoke exit openingsand for automatically looking or unlockingthe access doors of thesmoking compartment.

5. A smoke-house comprising an inner cas ing having a fire-box and asmoking compartment each having smoke exit openings,

an outer casing spacedfrom the inner casing to form an outersmokechamber. there'about, means for conveying the smoke from; the smokingcompartment and from the outer chamber, said smoking compartment havinga large opening for access by the workmen to said smoking compartment,doors for closing the fire-box to permit smoke from entering the smokingcompartment, and means for closing said smoke exit openings of thefire-box and the smoking compait' ment and for simultaneously closingthe firebox doors. a

smoking compartment, an outer casing spaced from the inner casing toform an outer chamber thereabout, means for conveying smoke-from thesmoking compartment and from the outer chamber, said inner smokingcompartmenthaving a large opening for access by the workmen to thesmoking compartment, doors controlling the access opening to-said innersmoking compartment, means for closing said smoke exit openingsof thefire-box and the smoking compartment, and mechanism for controlling theposition of the closingmeans jotthe smoke exit openings.

7. A smoke-house having a fire-box and a smoking compartment providedWith independent smoke exit openings, separate means for controllingsaid openings, doors adapted to shut off or to permitsmoke to enter saidr H I10 6. A smoke-house having a firebox and a compartment from thefire-box, means for conveying the smoke away from the smokingcompartment and from the firebox, and means for operating the fire-boxdoors and for operating both of the smoke exit controlling means.

8. A smoke-house comprising an inner casing having a fire-box and asmoking compartment each having smoke exit openings, means forsuspending the material to be smoked within the smoking compartment, anouter casing spaced from the inner casing to form an outer chamberthereabout, independent fiues leading from the smoking compartment andfrom the outer chamber, said smoking compartment having a large openingat the front thereof for access by the I workmen to the smokingcompartment, doors controlling the access opening to said smokingcompartment, doors for closing the firebox to prevent smoke fromentering the smoking compartment or to permit smoke to enter therein,means for simultaneously closing said smoke exit openings of thefire-box and the smoking compartment and for moving the doors of thefire-box to an open position or vice versa, and for automaticallylooking or unlocking the access doors of the smoking compartment duringthe operation of the fire-box doors and the controlling means of thesmoke exit openings.- i

9. A smoke-house, comprising a casing hav ing a smoking compartment anda fire-box and having an opening for access to said smoking compartment,means for shutting off the fire-box from the smoking compartment, doorsadapted to close said opening, and means operatively connected to thefirebox shutting off means for locking and unlockingsaid doors. I

10. A smoke-house comprising a casing having a smoking compartment and afirebox and having an opening for access to said smoking compartment,means for shutting off the fire-box from the smoking compartment, meansadapted to close said opening, and means operatively connected to thefirebox shutting oif means for locking and unlocking said opening andclosing means.

11. A smoke-house having a fire-box and a smoking compartment, thelatter being provided with an opening for access to said smokingcompartment, doors adapted to close said opening, doors for shutting offsaid fire-box from the smoking compartment, manually operated means foropening and closing saiddoors, and means operatively connected to thefire-box door operating means for locking and unlocking said doors.

12. A smoke-house comprising an inner casing having a smokingcompartment and a fire-box, means for closing communication between thefire-box and the smoking compartment, an outer casing having a chamberabout the smoking compartment, said smoking compartment having smokeexit openings at the upper part thereof and an access opening at thefront portion thereof, a slide controlling said smoke exit openings, apair of sliding doors controlling the access opening at the frontportion thereof, a locking bolt adapted to be brought into and out ofengagement with said doors, a lever having a cam portion to which saidbolt is held, means movable with the slide adapted to en gage said leverto move the latter to shift the position of the bolt, and means foroperating the slide.

13. A smoke-house comprising an inner casing having a smokingcompartment, an outer casing having a chamber about the smokingcompartment, said smoking compartment having smoke exit openings at theupper part thereof and an access opening at the front portion thereof, aslide controlling said smoke exit openings, means controlling the accessopening at the front portion thereof, a locking bolt adapted to bebrought into and out of engagement with said means, a lever having a camportion to which said bolt is held, means movable with the slide adaptedto engage said lever to move the latter to shift the position of thebolt, and means for operating the slide.

14. A smoke-house comprising an inner casing having a smokingcompartment provided with exit openings at the upper part thereof andwith an access opening at the front portion thereof, a slide controllingsaid smoke exit openings, a pair of sliding doors controlling the accessopening at the front portion thereof, and means operated by the slidefor locking and unlocking said doors.

15. A smoke-house comprising an inner casing having a smokingcompartment provided with smokevexit openings at the upper part thereofand with an access opening at the front portion thereof, a slidecontrolling said smoke exit openings, means controlling the accessopening at the front portion thereof, and means for locking andunlocking said controlling means.

16. In a smoke-house, the combination of a casing provided with asmoking compartment, means for causing smoke to pass into saidcompartment, means for conveying smoke away from said compartment, saidcompartment having smoke exit openings at the upper part thereof, aslide controlling said openings, a bell-crank lever, a verticallymovable rack bar adapted to actuate said lever in one direction, aflexible connection between the rack bar and the bell-crank I lever foroperating said lever in the opposite direction, and means for movingsaid rack bar.

17. In a smoke-house, the combination of a casing provided with asmoking compartment, means for causing smoke to pass into saidcompartment, means for conveying smoke away from said compartment, saidcompartment having smoke exit openings at the upper part thereof, aslide controlling said openings, a bell-crank lever, and means foroperating said lever in opposite direc-' tions.

18. In a smoke-house, the combination of a casing provided with asmoking compartment, means for causing smoke to pass into saidcompartment, means for conveying smoke away from said compartment, saidcompartment having smoke exit openings, a slide controlling saidopenings, a bellcrank lever, a vertically movable rack bar adapted toactuate said lever in one direction, a connection between the rack barand the bell-crank lever for operating said lever in the oppositedirection, and means for moving said rack bar.

19. In a smoke-house, the combination of an'inner casing having asmoking'compartment and a fire-box, an outer casing forming a chamberabout the fire-box and smoking compartment, said fire-box havingopenings leading to the smoking compartment and with lateral openingscommunicating with the outer chamber, doors controlling the openingsleading to the smoking compartment, slides for controlling the lateralopenings leading to the outer chamber, a crank shaft operativelyconnected to the slides and having two arms differently positioned withrespect to each other, a bar adapted to engage said arms to move therock shaft in opposite directions to open and close the lateral'openingsof the fire-box, and means connecting said bar to the firebox doors toopen and close the same, said fire-box doors being open when the slidesare moved to a closed position and vice versa.

20. In a smoke-house, the combination of an inner casing having asmoking compartment and a fire-box, an outer casing forming a chamberabout the fire-box and smoking compartment, said fire-box havingopenings leading to the smoking compartment and'to the outer chamber,means controlling the. smoking compartment communicating means, slidesfor controlling the lateral openings leading to the outer chamber, a

crank shaft operatively connected to the slide and having two armsdifferently positioned with respect to each other, and means adapted toengage said armsto move the rock shaft in opposite directions to openand close the lateral openings ofvthe fire-box.

21. In a smoke-house, the combination of an inner casing-having asmoking compartment and a fire-box, an outer casing forming a chamberabout the fire-box and smoking compartment, said fire-box havingopenings leading to the smoking compartment and with lateral openingscommunicating with the outer chamber, doors controlling the openingsleading to the smoking compartment, slides for controlling the lateralopenings leading to the latter chamber, and

means for opening the doors when the slides crank shaft, operativelyconnected to the slide and having two arms, a vertically movable elementadapted to engage said arms to move the rock shaft in oppositedirections to open and close the lateral openings of the fire-box, andmeans connecting said element to the fire-box doors to open and closethe same.

23. In a smoke-house, the combination of an inner casing provided with asmoking compartment and a firebox, an outer casing provided with achamber about the smoking compartment, fire-box doors adapted to shutoff or permit communication between the fire-boX and the smokingcompartment, a vertically movable bar, means for moving said bar, andlinks connecting said bar to the doors to open and close the same.

' 24. In a smoke-house, the combination of an inner casingprovided witha smoking compartment and a fire-box, an outer casing provided with achamber. about the smoking compartment, fire-box doors adapted to shutoff or permit communication between the fire-box and smokingcompartment, a vertically movable element, means for moving saidelement, and links connecting said element to the doors to open andclose the same. This specification signed and witnessed this 22nd day ofApril A. D. 1914.

JACOB r. OBERLE.

Witnesses:

Lns'rnn C. TAYLOR, C. BARTELS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

